▎ 摘　　要

NOVELTY - The method of creating regions within a chamber partially confined by surfaces of a solid substrate and containing a carbon-containing gas (CCG), comprises causing dissociation of carbon atoms from the CCG molecules during one mean free path of flight of the molecules by passing a pre-determined number of pulses of a tunable high power laser such as helium-neon, xenon-fluoride, carbon-dioxide, hydrogen-chloride lasers and excimer lasers compatible with the major absorption bands of the CCG, and depositing the atoms to the adjacent surfaces of the substrate during each light pulse. USE - The method for creating regions within a chamber partially confined by surfaces of a solid substrate and containing a carbon-containing gas (CCG) such as methane, carbon dioxide, ethanol and ethylene is useful for mass production of graphene and carbon tubes (claimed). ADVANTAGE - The method avoids the intermolecular collisions and molecule-solid surface collisions of the under-energized molecules to continuously raise the substrate material temperatures thus producing high quality graphene structures with larger quantity and size without causing substrate materials to reach their melting point temperatures. DETAILED DESCRIPTION - The method of creating regions within a chamber partially confined by surfaces of a solid substrate and containing a carbon-containing gas (CCG), comprises causing dissociation of carbon atoms from the CCG molecules during one mean free path of flight of the molecules by passing a pre-determined number of pulses of a tunable high power laser such as helium-neon, xenon-fluoride, carbon-dioxide, hydrogen-chloride lasers and excimer lasers compatible with the major absorption bands of the CCG, depositing the atoms to the adjacent surfaces of the substrate during each light pulse, providing diffusion mechanism to replenish with fresh CCG to and empty other dissociated gas products from the regions during each intermission between two consecutive pulses, and forming a one-atom-thick layer of hexagonal lattice of carbon atoms such as graphene. An INDEPENDENT CLAIM is included for an installation/facility for the production of graphene by deposition of carbon atoms on flat plate (substrate) surfaces generated from dissociation of CCG stimulated by a tunable high power pulsed laser. DESCRIPTION OF DRAWING(S) - The diagram shows a schematic view of a tiny piece of a graphene sheet.